Developed exclusively for the VACUUM GYRO ROLLER The ROLLING TENGA CUP Series is developed with internal details to enhance the unique spinning movement made possible with the VACUUM GYRO ROLLER. Rolling TENGA CUP Features Available in Gentle, Regular and Strong variations Try them all to discover your favorite level of stimulation! Remove the sticker at the top of the ROLLING TENGA CUP Uncovering the air hole at the top of the item makes it possible to create a suction sensation during use. Attach to the VACUUM GYRO ROLLER and enjoy! THE ROLLING TENGA CUP items can also be enjoyed without any other attachments for a more "natural" experience.